亲们，您是否对iphone系统怎么降系统_iphone4降级系统感到陌生？别担心，今天我将为大家介绍一些关于iphone系统怎么降系统_iphone4降级系统的知识，希望能够帮助大家更好地了解这个话题。
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iPhone4 降级5.11-6.13-7.12教程
readme.txtWhat is Pluvia?
===============
Pluvia allows you to untethered downgrade your iPhone 4 without SHSH blobs!
It uses the iOS 7.1.2 iBoot exploit "De Rebus Antiquis" by @xerub and @dora2-iOS.
Beta 1.6 Limitations
====================
Only for Mac!
Only supports iPhone3,1.
Only supports iOS 5.1.1 (9B206), 6.x, and 7.x.
Can only jailbreak iOS 5.1.1 and 6.1.3
NOTE: 8GB iPhone 4's that shipped with iOS 6 can only run iOS 6 and newer, NOT iOS 4 or 5. This almost certainly can't be fixed.
How to use Pluvia
=================
1) Creating the patched IPSW
Run ./make_ipsw.sh jailbreak (if you want to jailbreak)
Or run ./make_ipsw.sh (if you don't want to jailbreak)
2) Restoring the firmware
Connect your iPhone 4 and put it in DFU mode.
Run ./restore.sh <Patched_IPSW>
Wait for that to complete.
When your phone reboots the Apple logo should blink and then it will boot the older iOS!
Getting out of recovery mode after restoring to stock iOS
=========================================================
Run ./make_ipsw.sh <Any_Supported_Input_IPSW> reset
Connect your iPhone 4 and put it in DFU mode.
Run ./restore.sh <Reset_NVRAM_IPSW>
Credits
=======
@xerub for De Rebus Antiquis iBoot exploit
@dora2-iOS for the auto-booting version of the exploit (ramdiskH_beta4.dmg), and the firmware bundles ( https://github.com/dora2-iOS/s0meiyoshino )
@a8q for partitioning script in ramdisk
@saurik for Cydia.tar
UnthreadedJB for the iOS 5 untetherp0sixspwn
p0sixspwn (@ih8sn0w, @squiffy, @winocm) for the iOS 6 untether
s0uthwest, libimobiledevice, and @tihmstar for idevicerestore
@axi0mx for ipwndfu
@ih8sn0w, @NyanSatan, and @Merculous for iBoot32Patcher
@tihmstar and @encounter for tsschecker
@sequinn and @parrotgeek1 for root_tar
Licensing note
==============
The ParrotGeek Software logo shown during the restore process is NOT licensed under the GPL and must be removed in any forks.
Furthermore, any publicly released forks of this project must not use the word Pluvia anywhere in their name, or purport to be endorsed by ParrotGeek Software
苹果手机怎么降级系统？
首先查询iPhone是否支持降级，然后选择对应的iPhone设备型号，下载固件。最后连接iTools进入恢复模式即可降级。具体步骤如下：
1、在iPhone系统降级之前，通过打开ipsw．me，需要先查询确定一下自己的iPhone系统可以下降的系统版本的。
2、在iPhone栏目中，选择对应的iPhone设备型号，即可查询到目前苹果服务器可以进行降级的IOS系统固件版本，绿色表示的是支持降级系统固件版本，红色代表的是不可降级的系统版本。
3、在对iPhone手机系统进行降级时，下载一下对应降级固件版，具体下载方法如下：通过iTools软件工具箱，下载iPhone系统版本固件，注意一下，一定要下载与查询的时候，相对应的ios系统固件版本。
4、将iPhone连接到电脑上面，打开iTunes软件，在把iPhone调至恢复模式，这时在iTunes软件上面就会出现显示出一部出现问题的iPhone设备。
5、接下来我们按一下键盘Shift键＋点击恢复，打开所下载到的固件来恢复就可以降级，降级时注意一下，别乱动手机或者拔出手机数据线，以避免iPhone降级失败，慢慢等待iTunes和iPhone手机上面进度条结束。
6、iPhone在降级的时候会自动重启手机，耐心慢慢等待iPhone降级进度完成后，对于iPhone重新在激活一次，之后就可以使用了，同时系统也下降到所降级的系统版本。
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